266631200 has 144 divisors (see below), whose sum is σ = 728390880. Its totient is φ = 94464000.

The previous prime is 266631187. The next prime is 266631229. The reversal of 266631200 is 2136662.

It is a self number, because there is not a number n which added to its sum of digits gives 266631200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360431 + ... + 361169.

It is an arithmetic number, because the mean of its divisors is an integer number (5058270).

Almost surely, 2^266631200 is an apocalyptic number.

266631200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266631200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364195440).

266631200 is an abundant number, since it is smaller than the sum of its proper divisors (461759680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266631200 is a wasteful number, since it uses less digits than its factorization.

266631200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 266631200 is about 16328.8456419920. The cubic root of 266631200 is about 643.6310528968.

Adding to 266631200 its reverse (2136662), we get a palindrome (268767862).

The spelling of 266631200 in words is "two hundred sixty-six million, six hundred thirty-one thousand, two hundred".